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5/6 Nephrectomy Using Sharp Bipolectomy Via Midline Laparotomy in Rats
Published on: April 4, 2025
[Does tumour diameter still limit the indications for partial nephrectomy in 2008?]
M Crépel1, K Bensalah, J-J Patard
1Service d'urologie, CHU de Rennes, rue Henri-le-Guillou, 35033 Rennes cedex, France.
Summary
The 4cm cut-off for kidney tumour surgery is questionable. Partial nephrectomy may be suitable for larger tumours, offering equivalent cancer control with acceptable mortality risks.
Area of Science:
- Urology
- Oncology
- Surgical Pathology
Context:
- Current indications for partial or radical nephrectomy rely on a 4cm kidney tumour diameter cut-off.
- Tumour diameter is a continuous prognostic factor, ideally for multivariate models.
- The 4cm cut-off was pragmatically established and may be subject to selection biases.
Purpose:
- To evaluate the validity of the 4cm cut-off for kidney tumour nephrectomy indications.
- To compare cancer control and mortality for partial versus radical nephrectomy based on tumour size.
Summary:
- Multiple studies challenge the 4cm cut-off, suggesting partial and radical nephrectomy offer equivalent cancer control for pT1b tumours.
- Broader indications for partial nephrectomy show acceptable excess mortality.
- Feasibility of partial nephrectomy should be considered irrespective of tumour diameter before opting for radical nephrectomy.
Impact:
- Revising nephrectomy guidelines to consider partial nephrectomy for tumours exceeding 4cm.
- Improving patient outcomes by potentially offering more kidney-sparing procedures.
- Reducing unnecessary radical nephrectomies and associated morbidity.
